Osiris was the Egyptian god of the afterlife, the underworld and the dead. Osiris was also associated with the cycles of nature, in particular vegetation and the annual flooding of the Nile. He is classically depicted as a green-skinned man with a pharaoh's beard, partially mummy-wrapped at the legs, wearing a distinctive crown with two large ostrich feathers at either side, and holding a symbolic crook and flail. Osiris was the oldest son of the Earth god Geb, and the sky goddess Nut, the brother and husband of Isis, and father of Horus. The Kings of Egypt were associated with Osiris in death - as Osiris rose from the dead they would, in union with him, inherit eternal life through a process of imitative magic. By the New Kingdom all people, not just pharaohs, were believed to be associated with Osiris at death if they incurred the costs of the assimilation rituals.